Sony's
image sensor forms the core imaging technology behind many top cameras and
today the company has announced the world's first product to significantly
improve the quality of its imaging smartphone. The new CMOS IMX586 CMOS image
sensor has the highest pixel resolution available on smartphones, delivering
480,000 effective pixels. This is significantly more pixelated than the main
camera in the Huawei P20 Pro, even less than Sony's high-end A7R III lens.
This
high resolution is achieved by creating extremely small pixels of 0.8 μm wide,
allowing 48MP to be mounted on a chip with only 8mm diagonal lines. The main
advantage of this high pixel count is the advanced digital zoom capability of
image and video mode. In addition, the camera can store full 48MP images for
later cropping while retaining acceptable detail. However, extremely small
pixels have significant limitations because smaller pixels are less effective
at capturing light than larger pixels. This is one of the reasons why some
cameras (such as the Sony A7S series) choose a small number of large pixels to
achieve lower light performance at the resolution level. However, excellent low
light performance is also the basis of smartphone photography, so the Sony
IM586 performs a "Quad Bayer" color filter array similar to that used
by the Huawei P20 Pro.
The
Sony IM586 can selectively optimize sensitivity instead of image resolution by
dividing 2x2 adjacent 0.8μm pixel blocks into larger 1.6μm pixel pixels. In
this mode, the sensor produces better low-light images with a resolution of up
to 12MP. Quad Bayer arrays are grouped by arranging adjacent 2x2 pixel groups
with filters of the same color as the different colors as a standard Bayer
array.
The
Sony IM586 also promises a fantastic dynamic range of four times that of the
"traditional product," though the announcement does not really name
any such product. One disadvantage of ultra-high resolution sensors is that the
other specifications of the smartphone may also require significant upgrades to
handle all the additional image data. For example, if you want to maintain the
same shutter speed as a 12 megapixel camera, 48MP devices will need to transfer
data at four times the speed and provide about four times the storage capacity.
The
IMX586 also has the ability to capture 30 full-resolution images at 30 fps, as
well as 4x 90fps video, which is a greater burden for any image processing your
phone may need. For this reason, I hope that the new sensors will work best on
the top models, but these phones can deliver great performance, especially when
configuring a multi-camera solution High resolution IM586. Better sensitivity
of the secondary camera module.
Advanced
smartphone models require higher image quality. The new Sony 480,000-pixel CCD
sensor is comparable to a high-performance SLR camera, which allows you to
capture high-quality, high-resolution photos even with your smartphone. The new
sensor uses a Quad Bayer color filter array with 2x2 pixels adjacent to the
same color for high sensitivity shooting. During low-light shooting, signals
from four adjacent pixels are added, increasing the sensitivity to the
equivalent of 1.6 μm pixel (12 million pixels), resulting in brighter, less
noise.
In
addition to these advantages, Sony's original exposure control technology and
native signal processing functions are integrated into the image sensor,
allowing up to four times the real-time and dynamic range output compared to
other common equipment. Even scenes in bright and dark areas can capture the
smallest highlights or lose details in the dark. The new product reaches the
world's smallest 0.8 micron pixel, including 480,000 effective pixels per
1/2-type (diagonal 8.0 mm) to support the camera's advanced image.
No comments:
Post a Comment